Substrate: decaying hardwood logs and woody materials
Conservation Status: Not of concern
Both B. adusta and B. fumosa could be mistaken for species of Stereum or Trametes. The former, however, have a smooth surface under the cap, while the latter have white to plae gray pores and their caps are more or less zonate.
Sources: Trudell, Steve and Joe Ammirati. Mushrooms of the Pacific Northwest. Portland, Timber Press, Inc. 2009.
PNW Herbaria: Specimen records of Bjerkandera fumosa in the Consortium of Pacific Northwest Herbaria database
CalPhotos: Bjerkandera fumosa photos